title: Childhood and adult socio-economic position and social mobility as determinants of low back pain outcomes.
abstract: BACKGROUND
  Low back pain (LBP) is a prevalent problem and tends to be socio-economically patterned. Relatively little is known about life-course socio-economic circumstances as determinants of different types of LBP. Our aim was to examine whether childhood and adult socio-economic position and social mobility are associated with radiating and non-specific LBP and sciatica.
  
  
  METHODS
  Data were derived from the Young Finns Study (n = 2231). Childhood socio-economic position was based on parental education, occupational class and family income at baseline in 1980. Data on own education and LBP outcomes were collected at the end of follow-up in 2007. Social mobility was based on parental and own education. Covariates were composed of age, parental body mass index and smoking.
  
  
  RESULTS
  Both childhood and own socio-economic position remained associated with radiating LBP and sciatica after adjustments. However, the associations varied by socio-economic indicator and gender. Stable lower socio-economic position and downward mobility were associated with radiating LBP.
  
  
  CONCLUSIONS
  Childhood socio-economic circumstances affect the risk of radiating LBP and sciatica in adulthood. To prevent low back disorders, early socio-economic circumstances need to be considered alongside own socio-economic position.
authors.affiliation: Finnish Institute of Occupational Health, Helsinki, Finland; Department of Public Health, Hjelt Institute, University of Helsinki, Finland.
authors.forename: T
authors.initials: T
authors.lastname: Lallukka
authors.forename: E
authors.initials: E
authors.lastname: Viikari-Juntura
authors.forename: O T
authors.initials: OT
authors.lastname: Raitakari
authors.forename: M
authors.initials: M
authors.lastname: Kähönen
authors.forename: T
authors.initials: T
authors.lastname: Lehtimäki
authors.forename: J
authors.initials: J
authors.lastname: Viikari
authors.forename: S
authors.initials: S
authors.lastname: Solovieva
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D015992:Body Mass Index; D002648:Child; D002675:Child, Preschool; D004522:Educational Status; D005260:Female; D005387:Finland; D006801:Humans; D007182:Income; D017116:Low Back Pain / Q000453:epidemiology* / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D010290:Parents; D015995:Prevalence; D012585:Sciatica / Q000453:epidemiology; D012737:Sex Factors; D012923:Social Class; D012937:Social Mobility / Q000706:statistics & numerical data*; D012959:Socioeconomic Factors; D016896:Treatment Outcome